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Old 02-14-2014, 06:25 PM   #1
Juicedz
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Under hood insulation

Just curious if anyone has removed the sound deadening insulation that the factory places under the hood? I've been considering it since I don't mind the engine noise. Wouldn't the insulation also retain more heat?


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Old 02-14-2014, 06:42 PM   #2
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Seems to be something I would leave alone.
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Old 02-14-2014, 08:21 PM   #3
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I cut two slots in mine for my hood vents... I was really surprised at how thick it is! I would recommend leaving it in place at least during winter months.
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Old 02-14-2014, 08:33 PM   #4
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Quote:
Originally Posted by Juicedz View Post
Just curious if anyone has removed the sound deadening insulation that the factory places under the hood? I've been considering it since I don't mind the engine noise. Wouldn't the insulation also retain more heat?
yea i may do that lol. I would like more engine note.
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Old 02-14-2014, 10:30 PM   #5
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I may also protect the paint from engine heat. You may blister the paint on the hood without it.
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Old 02-14-2014, 10:52 PM   #6
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I may also protect the paint from engine heat. You may blister the paint on the hood without it.
I don't think this is a concern. Besides, the engine cover would blister far before the paint would, notifying me there's a more serious issue. I've taken it off of sports cars in the past and have seen multiple show cars that do not have it to display more of a paint scheme with the hood open. Also, there's a lot of road grime that gets caught under there and southern cars would probably benefit more with the heat dispersion without it. I think it's there for two reasons, noise reduction and to serve as a flame retardent. I'm probably going to take it off so I can clean the whole underside of the hood after every car wash.
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Old 02-14-2014, 11:06 PM   #7
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I don't have a MK3, but I'm coming to the conclusion that it allows for faster warm ups and heat retention in winter months. I have a Scangauge II that gives me the real engine temps, the stock needle points straight up of course. Two years ago I removed the hoodliner I've been struggling to get to the true operating temp in winter and staying there. I got a junkyard liner yesterday, now the SGII reads "hotter" and more consistent; and my MPG seems like it has gone back up to where it should be. ...and I checked the coolant mix and changed my thermo so I know it's not stuck.

It was nice to come out of work tonight and have a little bit of heat in the engine left after 4 hours of sitting in 20* weather. The engine was in the 90's.

Never noticed a lick of difference in the sound department, and I'm mechanically bone stock.
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Old 02-14-2014, 11:15 PM   #8
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I grew up in Michigan and don't miss those temps at all...lol. However, In the deep south we regularly see temps at 100+ so anything to eliminate heat is a positive. Plus, as I previously stated it would also be cleaning up the engine bay area.
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Old 02-15-2014, 12:16 AM   #9
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Quote:
Originally Posted by idrummerboy13 View Post
yea i may do that lol. I would like more engine note.
It may not be the kind of noise you like. The direct injection fuel injectors are loud on the MK3.

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I don't think this is a concern. Besides, the engine cover would blister far before the paint would
Ford discontinued the factory installed engine cover on the MK3 long ago. Very few MK3s came from the factory with an engine cover, only early build Titaniums. They are still available from Ford for those who wish to install one.
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Old 02-15-2014, 06:23 AM   #10
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I don't think Ford would put it there if it caused a heat issue....its for sound and fire. My '67 Cougar had one so they have been doing that for a long time....consequently that car did catch on fire at one point and burt the insulation up!
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